Objective To investigate the oral health status among 12-year-old children in Sichuan province and monitor the tendency of dental caries. Methods A stratified multistage random sampling design was applied and a total of 768 12-year-old children were selected from 3 urban sampling spots and 3 rural sampling spots. All
examinees answered an oral health knowledge questionnaire and were examined by experienced dentists. Results The prevalence rate of caries of this group of 12-year-old children in Sichuan Province was 42.18%, its mean DMFT was 0.94±1.44. Urban children showed higher prevalence rate and DMFT than the children in countryside did（P
